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Which battery does the Canon SX730 take?

The Canon PowerShot SX730 HS is a digital compact camera that features a 20.2MP sensor. It is powered by the Canon NB-13L, which is a rechargeable Lithium-Ion battery pack. Lithium-Ion batteries offer a high energy density and low self-discharge, and are nowadays found in many portable electronic devices.

Battery Pack

The NB-13L operates at a voltage of 3.6V and has a capacity of 1250mAh. It can be charged from a standard electrical outlet via the Canon CB-2LHE charger (that can be purchased separately, for example, at amazon). The battery pack measures 30mm in width, 10mm in height, and 48mm in depth. It weighs 22g. The NB-13L has been on the market since September 2014 and sells at good camera retailers, such as amazon, for about $50. Generic alternatives (see below) that are compatible with the Canon PowerShot SX730 HS can be obtained at substantially lower cost.

How many shots can I take with a fully charged NB-13L?

The number of shots that one can get out of a battery pack depends heavily on the style and imaging practice of the photographer. For example, the extended use of the LCD screen for framing or reviewing will result in reduced battery performance.


The Camera & Imaging Products Association (CIPA) has established guidelines (click here to download the pdf-document) that manufacturers are supposed to respect when reporting the battery life of their cameras. According to this CIPA-rating, the Canon SX730 can take 250 images on a single charge. Given the relatively demanding energy usage of the CIPA procedures, this rated number should be achievable or be surpassed in most practical situations. However, if the environment is cold, the LCD screen is used heavily, or the camera is turned on and off frequently, battery mileage might drop below the rating. Also, as the battery pack ages, its performance will tend to deteriorate.

What about generic battery packs?

Canon sells the original NB-13L pack at quite a steep price. This premium pricing strategy has left room in the market for third party suppliers to offer fully compatible battery packs at much lower prices. Savings from buying generic replacement batteries can amount up to 70 percent of the price of the genuine battery pack.

Canon NB-13L Specifications

  • Battery type: Rechargeable Lithium-Ion power pack
  • Compatibility: Canon SX730 & other selected Canon cameras
  • Voltage: 3.6V DC
  • Capacity: 1250mAh or 250 shots (CIPA) with the Canon SX730
  • Dimensions (W x H x D): 30 x 10 x 48mm
  • Weight: 22g

Indeed, one can easily find a variety of competitively-priced NB-13L replacements from different vendors at major online platforms (see, for example, here on eBay). All these generic alternatives should work fine with your Canon SX730. So why would anybody then buy the more expensive original battery? Well, below are some arguments in favor of the genuine NB-13L, which can perhaps be summarized as "peace of mind":

  • Assurance that the warranty of the camera will not be rendered void if a battery-related failure occurs;
  • Assurance that the battery pack will indeed have the stated capacity;
  • Assurance that the battery will have low self-discharge rates and, thus, will hold its charge even when not in use;
  • Assurance that the power unit will not trigger any warning messages on the camera and can be effectively charged with the standard charger;
  • Assurance that the manufacturing process has respected the safety guidelines for Lithium-Ion batteries;

If you can live without these assurances, then you are in for some nice savings from buying generic replacements for the NB-13L. Unfortunately, the market for generic battery packs is rather fluid, with new trade names popping up regularly while others disappear. Hence it is difficult to keep track of all the suppliers and the quality of their products. That said, in North America, battery packs from Wasabi have gained a good reputation, while in Europe, replacement power packs from Patona have received many favorable reviews. In any case, the existing comparisons tend to find that the cheapest of the generic replacement packs score worse in terms of achieving their rated capacity, holding their charge over time, or allowing for a large number of charge-discharge cycles than somewhat pricier battery packs (or the genuine Canon offer). Thus, the old adage, "If the price sounds too low to be true, it probably is" has some merit with respect to camera batteries also. You can check the current offers and prices for the original NB-13L and its clones by using the buttons below.

ebay amazon

Which other cameras use the Canon NB-13L?

The Canon SX730 is not alone in using the NB-13L. Several other cameras from Canon are powered by the same type of lithium-ion pack. The adjacent table lists some of them along with a selection of their headline specifications.

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Cameras using the NB-13L
# Camera
Battery life
Sensor Size
Launch Price
Street Price
1Canon G1 X Mark IIINB-13L200APS-C24.0399Oct 20171,299i
2Canon G5 XNB-13L2101-inch20.0353Oct 2015799i
3Canon G5 X Mark IINB-13L2301-inch20.0340Jul 2019899i
4Canon G7 XNB-13L2101-inch20.0304Sep 2014699i
5Canon G7 X Mark IINB-13L2651-inch20.0319Feb 2016699i
6Canon G7 X Mark IIINB-13L2351-inch20.0304Jul 2019749i
7Canon G9 XNB-13L2201-inch20.0209Oct 2015529i
8Canon G9 X Mark IINB-13L2351-inch20.0206Jan 2017529i
9Canon SX620NB-13L2951/2.320.2182May 2016279i
10Canon SX720NB-13L2501/2.320.2270Feb 2016379i
11Canon SX730NB-13L2501/2.320.2300Apr 2017399i
12Canon SX740NB-13L2651/2.320.2299Jul 2018399i

Canon NB-13L FAQ

The NB-13L is the standard power source for the Canon SX730. As such it is an indispensable camera accessory. Below are some additional questions and answers concerning some particular aspects of the battery pack and Lithium-Ion power units more generally.

Is there a car charger available for the NB-13L?

Canon does not offer a travel charger, but third party suppliers do (see here on eBay).

Is the NB-13L available in colors other than gray?

No, Canon supplies this battery pack only in gray. However, some generic alternatives from third party providers might be available in other colors.

Can I use the NB-13L in any of my other electronic devices?

No, the battery is specifically designed for use in the Canon SX730 and other selected cameras from Canon.

How should the NB-13L be stored?

Lithium-ion batteries can hold a charge for a long time. However, these battery packs have a safety mechanism built-in that disables any re-charge if the voltage drops below a certain minimum level. To avoid this safety-trigger to be activated, the battery pack should be charged at least once every few months.

How should I discard my old battery pack?

The contents of Lithium-Ion batteries is under pressure and the packs can explode if exposed to extreme heat. Lithium-Ion battery units should therefore never be incinerated and should not be thrown into the household trash, but put into the recycling stream. Most places that sell camera batteries will also accept them back for recycling.

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